wuchong commented on a change in pull request #13721:
URL: https://github.com/apache/flink/pull/13721#discussion_r511709209
##########
File path:
flink-table/flink-table-planner-blink/src/test/resources/org/apache/flink/table/planner/plan/stream/sql/join/SemiAntiJoinTest.xml
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@@ -307,7 +307,7 @@ Join(joinType=[LeftSemiJoin], where=[$f0], select=[a, b,
c], leftInputSpec=[NoUn
: +- LegacyTableSourceScan(table=[[default_catalog, default_database, l,
source: [TestTableSource(a, b, c)]]], fields=[a, b, c])
+- Exchange(distribution=[single])
+- Calc(select=[IS NOT NULL(m) AS $f0])
- +- GroupAggregate(select=[MIN(i) AS m])
+ +- GroupAggregate(select=[MIN_RETRACT(i) AS m])
Review comment:
This is a bug in previous `FlinkRelMdModifiedMonotonicity`, the need
retraction inference was not correct.
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